#include <VerificationOptions.h>
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enum | SecurityLevel { e_compatibility_and_archiving = 0,
e_maximum = 1
} |
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enum | TimeMode { e_signing = 0,
e_timestamp = 1,
e_current = 2
} |
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enum | CertificateTrustFlag {
e_signing_trust = 1,
e_certification_trust = 2,
e_dynamic_content = 4,
e_javascript = 16,
e_identity = 32,
e_trust_anchor = 64,
e_default_trust = 97,
e_complete_trust = 119
} |
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TRN_VerificationOptions | m_impl |
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Options pertaining to digital signature verification.
Definition at line 21 of file VerificationOptions.h.
Enumerator |
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e_signing_trust |
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e_certification_trust |
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e_dynamic_content |
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e_javascript |
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e_identity |
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e_trust_anchor |
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e_default_trust |
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e_complete_trust |
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Definition at line 52 of file VerificationOptions.h.
pdftron::PDF::VerificationOptions::VerificationOptions |
( |
TRN_VerificationOptions |
impl | ) |
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pdftron::PDF::VerificationOptions::~VerificationOptions |
( |
| ) |
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pdftron::PDF::VerificationOptions::VerificationOptions |
( |
SecurityLevel |
level | ) |
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Constructs a set of options for digital signature verification.
- Parameters
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level | – the general security level to use. Sets other security settings internally. |
void pdftron::PDF::VerificationOptions::AddTrustedCertificate |
( |
const UChar * |
in_certificate_buf, |
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size_t |
in_buf_size, |
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const UInt16 |
in_trust_flags = e_default_trust |
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) |
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Adds a certificate to the store of trusted certificates inside this options object.
- Parameters
-
in_certificate_buf | – a buffer consisting of the data of an X.509 public-key certificate encoded in binary DER (Distinguished Encoding Rules) format, or in PEM (appropriate Privacy-Enhanced Mail header+Base64 encoded DER+appropriate footer) format |
in_buf_size | – buffer size |
in_trust_flags | – a combination of trust flags (see enum CertificateTrustFlag) that determine for which situations this certificate should be trusted during trust verification. There is a default parameter value, the e_default_trust CertificateTrustFlag, which matches Acrobat's behaviour for this parameter. |
void pdftron::PDF::VerificationOptions::AddTrustedCertificate |
( |
const UString & |
in_filepath, |
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const UInt16 |
in_trust_flags = e_default_trust |
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) |
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Adds a certificate to the store of trusted certificates inside this options object, by loading it from a file.
- Parameters
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in_filepath | – a path to a file containing the data of an X.509 public-key certificate encoded in binary DER (Distinguished Encoding Rules) format, or in PEM (appropriate Privacy-Enhanced Mail header+Base64 encoded DER+appropriate footer) format. |
in_trust_flags | – a combination of trust flags (see enum CertificateTrustFlag) that determine for which situations this certificate should be trusted during trust verification. There is a default parameter value, the e_default_trust CertificateTrustFlag, which matches Acrobat's behaviour for this parameter. |
void pdftron::PDF::VerificationOptions::AddTrustedCertificates |
( |
const UChar * |
in_P7C_binary_DER_certificates_file_data, |
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const size_t |
in_size |
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) |
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Bulk trust list loading API from P7C. Attempts to decode the input data as binary DER and trust multiple trusted root certificates from it. Compatible with Acrobat's .P7C format, which is a variation on PKCS #7/CMS that only contains certificates (i.e. no CRLs, no signature, etc.). If a certificate cannot be decoded, this is ignored and an attempt is made to decode the next certificate. This overload takes no account of trust-level flags because none are available in the P7C format. Therefore, when this function is used, all certificates in the P7C file will be loaded as if trusted for everything, which may lead to false positives when compared to other PDF software. (Most applications use the FDF Cert Exchange format.) The FDF-trust-list-loading function "LoadTrustList" should be used instead whenever possible.
- Parameters
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in_P7C_binary_DER_certificates_file_data | – the P7C-format bulk certificate data, encoded in binary DER (Distinguished Encoding Rules) |
in_size | – the size of the data, in bytes |
void pdftron::PDF::VerificationOptions::Destroy |
( |
| ) |
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void pdftron::PDF::VerificationOptions::EnableDigestVerification |
( |
bool |
in_on_or_off | ) |
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Sets a flag that can turn on or off the verification of the digest (cryptographic hash) component of a digital signature.
- Parameters
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void pdftron::PDF::VerificationOptions::EnableModificationVerification |
( |
bool |
in_on_or_off | ) |
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Sets a flag that can turn on or off the verification of the permissibility of any modifications made to the document after the signing of the digital signature being verified, in terms of the document and field permissions specified by the digital signature being verified.
- Parameters
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void pdftron::PDF::VerificationOptions::EnableOnlineCRLRevocationChecking |
( |
bool |
in_on_or_off | ) |
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Enables/disables online CRL revocation checking. The default setting is for it to be turned off, but this may change in future versions.
- Note
- CRL checking is off by default because the technology is inherently complicated and resource-intensive, but may help improve verification rate when files are verified against a recent reference-time (e.g. maximum security mode), because online CRLs will be valid within that time. This mode will not be useful for old archival-type ('LTV') documents verified in archiving-and-compatibility security mode, because their online OCSP and/or CRL responder servers may not be alive anymore. However, such LTV documents can be created (if the CRL responder servers are still active) by enabling online checking, verifying, and then embedding the data using DigitalSignatureField.EnableLTVOfflineVerification.
- Parameters
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in_on_or_off | – what setting to use |
void pdftron::PDF::VerificationOptions::EnableOnlineOCSPRevocationChecking |
( |
bool |
in_on_or_off | ) |
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Enables/disables online OCSP revocation checking. The default setting is for it to be turned on.
- Parameters
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in_on_or_off | – what setting to use. |
void pdftron::PDF::VerificationOptions::EnableOnlineRevocationChecking |
( |
bool |
in_on_or_off | ) |
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Enables/disables all online revocation checking modes. The default settings are that online OCSP is turned on and online CRL is turned off, but the default CRL setting may change in future versions.
- Note
- CRL checking is off by default because the technology is inherently complicated and resource-intensive, but may help improve verification rate when files are verified against a recent reference-time (e.g. maximum security mode), because online CRLs will be valid within that time. This mode will not be useful for old archival-type ('LTV') documents verified in archiving-and-compatibility security mode, because their online OCSP and/or CRL responder servers may not be alive anymore. However, such LTV documents can be created (if the CRL responder servers are still active) by enabling online checking, verifying, and then embedding the data using DigitalSignatureField.EnableLTVOfflineVerification.
- Parameters
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in_on_or_off | – what setting to use |
void pdftron::PDF::VerificationOptions::EnableTrustVerification |
( |
bool |
in_on_or_off | ) |
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Sets a flag that can turn on or off the verification of the trust status of a digital signature.
- Parameters
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Get the certificate at a specific position in the current list of trusted certificates.
- Parameters
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index | – the index of the certificate in the current list. |
- Returns
- the certificate at position index in the list.
UInt32 pdftron::PDF::VerificationOptions::GetTrustedCertificateCount |
( |
| ) |
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Get the number of trusted certificates that have been added.
- Returns
- the number of trusted certificates.
void pdftron::PDF::VerificationOptions::LoadTrustList |
( |
const FDF::FDFDoc & |
in_fdf_cert_exchange_data | ) |
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Bulk trust list loading API with trust flag support. Loads a trust list that is structured in Acrobat's FDF Data/Cert Exchange format into the VerificationOptions certificate store. Use of this function is strongly recommended instead of the P7C API (i.e. AddTrustedCertificates). Certificates inside the FDF trust list that cannot be decoded and loaded, will be skipped.
- Parameters
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in_fdf_cert_exchange_data | – an FDFDoc from the FDF cert exchange data |
void pdftron::PDF::VerificationOptions::SetRevocationTimeout |
( |
const UInt32 |
in_revocation_timeout_milliseconds | ) |
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Sets the timeout for online revocation requests.
- Parameters
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in_revocation_timeout_milliseconds | The timeout value in milliseconds. |
TRN_VerificationOptions pdftron::PDF::VerificationOptions::m_impl |
The documentation for this class was generated from the following file: